Lifting rack for outboard engine test

Abstract

The invention relates to a lifting rack for outboard engine testing, which comprises a rack stand column, a rack cross beam, a connecting hanging plate and a movable water tank, and is characterized in that the rack cross beam is connected with the rack stand column through a lifting mechanism, and the rack cross beam can reciprocate up and down along the rack stand column; the connecting hanging plate is installed on one side of the rack cross beam through the turnover mechanism and can turn over in a reciprocating mode around the axis parallel to the rack cross beam, and the outboard engine is detachably connected with the connecting hanging plate. During loading and unloading, the rack cross beam moves to a lower position, and the connecting hanging plate is in an approximately horizontal state; during testing, the rack cross beam moves to a set height, and the connecting hanging plate is in an approximately vertical state and can turn over in a reciprocating manner. Assembly and disassembly of the outboard engine can be achieved, the stability during assembly and disassembly is improved, and the efficiency and precision of assembly and disassembly are improved; reproduction of all parameters of the outboard engine in the testing process can be achieved, and the accuracy of testing data is improved.

Description

Technical Field

[0001] This invention relates to the field of ship testing technology, and in particular to a lifting platform for testing outboard engines. Background Technology

[0002] As the main power unit of small vessels, outboard motors require rigorous performance testing and commissioning before leaving the factory. Traditional testing methods often involve supporting the outboard motor with a fixed bracket or a simple height-adjustable bracket and placing it in a test tank for testing.

[0003] However, existing testing methods generally rely on external lifting equipment such as bridge cranes or forklifts when installing or removing outboard motors from the test bench. Due to poor lifting and positioning accuracy and difficulties in aligning with the test bench fixtures, these methods suffer from low efficiency, are prone to improper operation leading to equipment collisions and damage, or personnel injuries. Furthermore, existing test benches have low levels of automation, relying heavily on manual adjustments, making it difficult to reproduce the various parameters of the outboard motor during testing, thus affecting the accuracy of the test data.

[0004] Based on the above-mentioned technical problems, this application proposes a lifting platform for testing outboard motors. Summary of the Invention

[0005] The purpose of this invention is to provide a lifting platform for outboard engine testing, thereby solving the technical problems mentioned in the background art. This purpose is achieved through the following technical solution: A lifting platform for outboard motor testing includes a platform column, a platform beam, a connecting plate, and a movable water tank. The platform beam is connected to the platform column via a lifting mechanism and can reciprocate up and down along the platform column. The connecting plate is installed on one side of the platform beam via a flipping mechanism and can reciprocate around an axis parallel to the platform beam. The outboard motor is detachably connected to the connecting plate. During loading and unloading, the platform beam moves to the lower position, and the connecting plate is in a roughly horizontal state. During testing, the platform beam moves to a set height, and the connecting plate is in a roughly vertical state, and the connecting plate can reciprocate.

[0006] Furthermore, the lifting mechanism includes a lifting seat and a lifting drive component. The lifting seat is slidably mounted on the platform column via a guide sleeve. The lifting drive component is connected to the lifting seat and is used to drive the lifting seat to reciprocate along the platform column.

[0007] Furthermore, there are two sets of platform columns, each set of platform columns is equipped with a lifting mechanism, and the two lifting mechanisms are independently controlled; the platform crossbeam includes a first end and a second end, the first end of the platform crossbeam is hinged to the lifting seat of one lifting mechanism through a first rotating shaft, and the second end of the platform crossbeam is connected to a horizontal slide through a second rotating shaft, the horizontal slide is slidably connected to the lifting seat of another lifting mechanism, and the levelness of the platform crossbeam can be adjusted by adjusting the lifting height of the two lifting mechanisms.

[0008] Furthermore, the lifting drive component is one of a pneumatic cylinder, a hydraulic cylinder, or an electric actuator.

[0009] Furthermore, the flipping mechanism includes a flipping bracket, a flipping shaft, and a flipping drive component. The connecting plate is fixed to the side of the flipping shaft, the flipping shaft is rotatably connected to the crossbeam of the frame through the flipping bracket, and the flipping drive component is connected to the flipping shaft. The flipping drive component is used to drive the flipping shaft to rotate.

[0010] Furthermore, the tilting drive component is one of a hydraulic swing cylinder, a hydraulic motor reducer assembly, a motor reducer assembly, or a tilting cylinder.

[0011] Furthermore, clearance spaces are provided on the crossbeams of the platform.

[0012] Furthermore, the mobile water tank includes a tank body, and guide wheels are installed at the bottom of the tank body.

[0013] Furthermore, a guide rail is provided between the water tank body and the platform column, and the water tank body is slidably mounted on the guide rail via guide wheels.

[0014] Furthermore, it also includes a control unit, an angle sensor, and a position sensor. The angle sensor is installed at the flipping mechanism, and the position sensor is installed at the lifting mechanism. The angle sensor, the flipping mechanism, the position sensor, and the lifting mechanism are all electrically connected to the control unit.

[0015] The technical solutions provided in this application have at least the following technical effects or advantages: 1. The flip-up connecting plate is installed on the liftable frame beam. The connecting plate is adjusted to be roughly horizontal and moved to a low position, which enables the assembly and disassembly of the outboard motor, improving the stability during loading and unloading, and improving the efficiency and accuracy of loading and unloading. 2. The height of the outboard motor is adjusted by the lifting mechanism, which realizes the automatic adjustment of the immersion depth of the outboard motor. This allows for the reproduction of various parameters of the outboard motor during the test, thus improving the accuracy of the test data. 3. The outboard motor's forward and backward angles can be adjusted via the flipping mechanism, and the left and right angles can be adjusted via the cooperation of two lifting mechanisms, thereby simulating the tilting state of the outboard motor during actual use and further improving the accuracy of the test. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of an embodiment of this application; Figure 2 for Figure 1 A magnified view of a portion of the image; Figure 3 This is a schematic diagram illustrating the connection between the mounting plate and the crossbeam of the platform in an embodiment of this application. Figure 4 This is a schematic diagram of the crossbeam angle adjustment in an embodiment of this application; Figure 5 This is a schematic diagram of the outboard motor structure according to an embodiment of this application; Figure 6 This is a schematic diagram of the loading and unloading state in an embodiment of this application; Figure 7 This is a schematic diagram of the test state in an embodiment of this application.

[0018] Reference numerals: 1. Frame column; 11. Base; 12. Column; 13. Connecting rod; 2. Frame beam; 21. Clearance position; 22. First pivot; 23. Second pivot; 24. Horizontal slide; 3. Lifting mechanism; 31. Lifting seat; 32. Lifting drive component; 4. Tilting mechanism; 41. Tilting bracket; 42. Tilting shaft; 43. Tilting drive component; 44. Tilting drive component bracket; 5. Connecting hanging plate; 6. Mobile water tank; 61. Water tank body; 62. Guide wheel; 7. Outboard motor; 71. Mounting plate. Detailed Implementation

[0019] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0020] like Figure 1-7 The diagram shows a lifting platform for testing outboard motors, comprising a platform column 1, a platform beam 2, a lifting mechanism 3, a tilting mechanism 4, a connecting plate 5, and a movable water tank 6. The platform beam 2 is connected to the platform column 1 via the lifting mechanism 3, and the platform beam 2 can move up and down along the platform column 1. The connecting plate 5 is installed on one side of the platform beam 2 via the tilting mechanism 4, and the connecting plate 5 can tilt back and forth around an axis parallel to the platform beam 1. The outboard motor 7 is detachably connected to the connecting plate 5.

[0021] like Figure 1 As shown, the support column 1 of the platform includes a base 11, two columns 12 are vertically fixed on the base 11, and a connecting rod 13 is connected between the tops of the two columns 12. The base 11, the two columns 12 and the connecting rod 13 form a rectangular frame structure.

[0022] like Figure 1 As shown, there are two sets of platform columns 1, arranged symmetrically opposite each other, with a gap between them to accommodate the movable water tank 6. Each platform column 1 is equipped with a lifting mechanism 3, which includes a lifting seat 31 and a lifting drive component 32. Guide sleeves are fixed to both sides of the lifting seat 31, and these guide sleeves are fitted onto the outside of the column 12 of the platform column 1, allowing the lifting seat 31 to slide up and down along the column 12. The lifting drive component 32 is vertically installed on one side of the platform column 1, and its telescopic end is connected to the lifting seat 31, driving the lifting seat 31 to move up and down along the column 12.

[0023] The lifting drive component 32 can be a pneumatic cylinder, a hydraulic cylinder, or an electric actuator, preferably a hydraulic cylinder. Hydraulic cylinders are simple in structure, reliable in operation, stable in running, have a low failure rate, and are relatively easy to maintain. Furthermore, hydraulic cylinders can output enormous linear thrust or pull by adjusting the hydraulic pressure and cylinder diameter, making them particularly suitable for applications requiring high-force drive. In addition, because the hydraulic system transmits power through fluid, the pipeline can be bent, making the installation location of the hydraulic cylinder less restricted and facilitating integration into space-constrained equipment.

[0024] Preferably, a guide roller is installed between the guide sleeve and the column 12 to ensure that the lifting seat 31 can move smoothly and without jamming along the column 12. A fall protection mechanism (not shown) is also installed between the lifting seat 31 and the platform column 1 to prevent the outboard motor from falling due to power failure or cylinder explosion. The fall protection mechanism can be a clamping clamp, a pin lock, or a fall protection sensor, as long as it can prevent the lifting seat 31 from falling, and there are no restrictions here.

[0025] like Figures 1-3 As shown, a first rotating shaft 22 is fixed to the right end of the platform beam 2. The first rotating shaft 22 is installed perpendicular to the length direction of the platform beam 2. The right end of the platform beam 2 is hinged to the lifting seat 31 of the right lifting mechanism 3 through the first rotating shaft 22.

[0026] A second rotating shaft 23 is fixed to the left end of the crossbeam 2. The second rotating shaft 23 is perpendicular to the length direction of the crossbeam 2. A horizontal slide 23 is rotatably installed at the second rotating shaft 23. The horizontal slide 23 is slidably connected to the lifting seat 31 of the left lifting mechanism 3 through a slider. The horizontal slide 23 can slide left and right in the horizontal direction. The levelness of the crossbeam 2 can be adjusted by adjusting the lifting height of the two lifting mechanisms 3.

[0027] like Figure 4 As shown, assuming the left-side lifting mechanism 3 remains stationary, the right-side lifting drive 32 moves the lifting seat 31 upward, causing the platform beam 2 to rotate counterclockwise around the first pivot 22, pushing the horizontal slide 23 to the left. When the platform beam 2 reaches a horizontal state, the horizontal slide 23 is in its leftmost position. As the right-side lifting seat 31 continues to move upward, the platform beam 2 continues to rotate counterclockwise around the first pivot 22, pulling the horizontal slide 23 to the right. The horizontal slide 23 compensates for the length difference caused by the tilt of the platform beam 2.

[0028] like Figure 1 , Figure 3 As shown, the flipping mechanism 4 includes a flipping bracket 41, a flipping shaft 42, and a flipping drive component 43. A connecting plate 5 is welded and fixed to the side of the flipping shaft 42. Both ends of the flipping shaft 42 are connected to two flipping brackets 41 via bearings, and the two flipping brackets 41 are fixedly connected to the frame beam 2. The flipping drive component 43 is fixedly connected to the frame beam 2 via a flipping drive component bracket 44. The output shaft of the flipping drive component 43 is connected to the flipping shaft 42 via a coupling. The flipping drive component 43 drives the flipping shaft 42 to rotate, causing the connecting plate 5 to flip around the flipping shaft 42.

[0029] The tilting drive component 43 can be one of a hydraulic swing cylinder, a hydraulic motor reducer assembly, a motor reducer assembly, or a tilting cylinder, preferably a hydraulic motor reducer assembly. The hydraulic motor reducer assembly has a compact design, saving installation space; it can provide stable high torque at extremely low speeds, and even output maximum torque at zero speed, making it very suitable for operating conditions requiring strong starts or heavy-load starts; through the hydraulic system, stepless speed regulation, reversing, and start / stop control can be easily achieved, with fast response speed, adapting to the dynamic needs of complex operating conditions.

[0030] Preferably, a clearance space 21 is provided on the upper side of the platform beam 2 to avoid interference between the outboard motor 7 and the platform beam 2.

[0031] like Figure 6 As shown, the movable water tank 6 includes a tank body 61 and guide wheels 62. The tank body 61 is a rectangular box with an opening at the top. Reinforcing ribs are fixed to the outside of the tank body 61 to ensure its structural strength. Four guide wheels 62 are symmetrically installed at the bottom of the tank body 61, allowing for easy movement of the tank body 61. Preferably, a guide rail (not shown) is installed between the two platform columns 1. The guide rail is arranged perpendicular to the connecting line of the two platform columns 1. The tank body 61 is slidably mounted on the guide rail via the guide wheels 62, thereby facilitating the movement and positioning of the movable water tank 6.

[0032] In a preferred embodiment of this application, a control unit, an angle sensor, and a position sensor are also included. The angle sensor, the flipping drive 43 of the flipping mechanism 4, the position sensor, and the lifting drive 32 of the lifting mechanism 3 are all electrically connected to the control unit. The angle sensor is installed at the flipping drive 43 of the flipping mechanism 4 to detect the flipping angle of the flipping drive 43, thereby enabling monitoring of the flipping angle of the connecting mounting plate 5. The position sensor is installed at the lifting drive 32 of the lifting mechanism 3 to monitor the position of the lifting seat 31.

[0033] The working principle of this application embodiment is as follows: like Figure 5 , Figure 6 As shown, during loading, the outboard motor 7 is moved between the two support columns 1 using a trolley. The connecting plate 5 is adjusted to a roughly horizontal position using the tilting mechanism 4. The connecting plate 5 is then moved downwards using the lifting mechanism 3. The position of the trolley is adjusted so that the mounting plate 71 of the outboard motor 7 aligns with the connecting plate 5. After the outboard motor 7 is fixedly connected to the connecting plate 5, the outboard motor 7 is lifted using the lifting mechanism 3 until it is above the height of the mobile water tank 6. The trolley is then removed, and the mobile water tank 6 is moved to a position below the outboard motor 7.

[0034] like Figure 7 As shown, during the test, the connecting plate 5 is adjusted to a roughly vertical position by the flipping mechanism 4, so that the outboard motor 7 is in a vertical position. The height of the outboard motor 7 is adjusted by the lifting mechanism 3 so that the immersion depth of the outboard motor 7 reaches the set value. The test pipeline is then connected for testing.

[0035] The outboard motor height is adjusted by a lifting mechanism, which enables automated adjustment of the outboard motor immersion depth. This allows for the reproduction of various outboard motor parameters during testing, improving the accuracy of test data.

[0036] During disassembly, first adjust the connecting plate 5 to a roughly horizontal position using the flipping mechanism 4, so that the outboard motor 7 is in a horizontal position. Then, move the mobile water tank 6 out and push it into the mobile trolley. Next, use the lifting mechanism 3 to lower the outboard motor 7 onto the mobile trolley, and then separate the outboard motor 7 from the connecting plate 5.

[0037] The rotatable connecting plate is installed on the liftable crossbeam of the platform. By adjusting the connecting plate to a roughly horizontal position and moving it to a low position, the assembly and disassembly of the outboard motor can be realized, which improves the stability during loading and unloading, as well as the efficiency and accuracy of the assembly and disassembly.

[0038] During testing, the tilting mechanism 4 can drive the connecting plate 5 to swing back and forth, thereby adjusting the pitch angle of the outboard motor 7; any one of the lifting mechanisms 3 can move up and down reciprocally, thereby adjusting the tilt angle of the outboard motor 7. This multi-degree-of-freedom design allows it to accurately simulate various complex operating conditions that the outboard motor may encounter in actual navigation, such as: stern descent during ship acceleration (requiring adjustment of immersion depth and pitch), pitch and roll in waves (requiring dynamic adjustment of pitch and roll), and turning tests at specific angles, thus greatly expanding the testing range and making performance evaluation, durability testing, and reliability verification closer to the real-world operating environment.

[0039] By acquiring test parameters for different outboard motors using angle and position sensors and storing them in the control unit, the corresponding test parameters can be retrieved when testing different outboard motors, thus enhancing the test adaptability to different product models and improving the utilization rate and efficiency of the test steps.

[0040] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A lifting platform for testing outboard motors, characterized in that, The system includes a platform column, a platform beam, a connecting plate, and a movable water tank. The platform beam is connected to the platform column via a lifting mechanism and can reciprocate up and down along the platform column. The connecting plate is installed on one side of the platform beam via a flipping mechanism and can reciprocate around an axis parallel to the platform beam. The outboard motor is detachably connected to the connecting plate. During loading and unloading, the platform beam moves to the lower position, and the connecting plate is in a roughly horizontal state. During testing, the platform beam moves to a set height, and the connecting plate is in a roughly vertical state, and the connecting plate can reciprocate.

2. The lifting platform for outboard engine testing according to claim 1, characterized in that, The lifting mechanism includes a lifting seat and a lifting drive component. The lifting seat is slidably mounted on the platform column via a guide sleeve. The lifting drive component is connected to the lifting seat and is used to drive the lifting seat to reciprocate along the platform column.

3. A lifting platform for outboard engine testing according to claim 2, characterized in that, The platform has two sets of upright columns, each set of which is equipped with a lifting mechanism, and the two lifting mechanisms are independently controlled. The platform crossbeam includes a first end and a second end. The first end of the platform crossbeam is hinged to the lifting seat of one lifting mechanism via a first pivot, and the second end of the platform crossbeam is connected to a horizontal slide via a second pivot. The horizontal slide is slidably connected to the lifting seat of the other lifting mechanism. The levelness of the platform crossbeam can be adjusted by adjusting the lifting height of the two lifting mechanisms.

4. A lifting platform for outboard engine testing according to claim 2, characterized in that, The lifting drive component is one of a pneumatic cylinder, a hydraulic cylinder, or an electric actuator.

5. A lifting platform for outboard engine testing according to claim 1, characterized in that, The flipping mechanism includes a flipping bracket, a flipping shaft, and a flipping drive component. The connecting plate is fixed to the side of the flipping shaft. The flipping shaft is rotatably connected to the frame beam through the flipping bracket. The flipping drive component is connected to the flipping shaft and is used to drive the flipping shaft to rotate.

6. A lifting platform for outboard engine testing according to claim 5, characterized in that, The tilting drive component is one of a hydraulic swing cylinder, a hydraulic motor reducer assembly, a motor reducer assembly, or a tilting cylinder.

7. A lifting platform for outboard engine testing according to claim 1, characterized in that, The crossbeam of the test bench is equipped with a clearance area.

8. A lifting platform for outboard engine testing according to claim 1, characterized in that, The mobile water tank includes a tank body, and guide wheels are installed at the bottom of the tank body.

9. A lifting platform for testing outboard motors according to claim 8, characterized in that, A guide rail is provided between the water tank body and the platform column, and the water tank body is slidably mounted on the guide rail via the guide wheels.

10. A lifting platform for testing outboard motors according to claim 1, characterized in that, It also includes a control unit, an angle sensor, and a position sensor. The angle sensor is installed at the flipping mechanism, and the position sensor is installed at the lifting mechanism. The angle sensor, the flipping mechanism, the position sensor, and the lifting mechanism are all electrically connected to the control unit.

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